I got a screen flickering when ever I start playing the game.
my drivers are up to date, the gog or steam forums show no solutions to this problem.
I was hoping someone here could help me out!

TL:DR: how to fix screen flicker ?

As far as I remember I had to change the game's config in nvidia panel - I had to switch GPU to intel HD for this game, cause it just didn't work on newer cards (geforce 755m in my case). After that it stopped flickering. I have no idea how to fix it if you don't have 2 cards.